Comparison of ASRock Radeon RX 6600 XT Challenger D 8GB OC video card vs PNY GeForce GTX 1080 Ti Blower V2 video card by specifications and benchmarks. ASRock Radeon RX 6600 XT Challenger D 8GB OC runs at 2.000 GHz+ 2 % base clock speed and has 8 GB of GDDR6 memory, while video card PNY GeForce GTX 1080 Ti Blower V2 runs at 1.480 GHz base clock speed and has 11 GB of GDDR5X memory. The TDP of the first video card is 160 W, and the second is 250 W. Compare the table of benchmark results to find out which graphic card is better.